Ms. Leopold is president and chief executive officer of the Dominion Energy business unit of Dominion Resources.

Ms. Leopold joined Dominion in 1995 and has held various operational, project management, and commercial and financial management roles throughout the company.

She chairs the board of directors of the Interstate Natural Gas Association of America and is a member of the board of the American Gas Association.

Ms. Leopold also serves on the board of trustees at Virginia Union University.

She received a bachelor's degree in mechanical and electrical engineering from the University of Sussex in the United Kingdom, a master's degree in electrical engineering from George Washington University, and an MBA from Virginia Commonwealth University (VCU).

Mr. Luke is non-executive chairman of WestRock Company after having served as chairman and chief executive officer of its predecessor company MeadWestvaco Corporation (MWV) from 2002 to 2015.

He spent 36 years with the company in several managerial positions, including as chairman, president and chief executive officer of another predecessor company, Westvaco Corporation.

Mr. Luke serves on the boards of The Bank of New York Mellon Corporation, The Timken Company, Factory Mutual Insurance Company, VCU Health System, The American Enterprise Institute for Public Policy Research and Colonial Williamsburg Foundation, among others.

He is rector of VCU. He also has served as chairman of the National Association of Manufacturers and was a board member of the Sustainable Forestry Initiative, the American Forest Foundation and the National Council for Air and Stream Improvement, Inc.

Mr. Luke received a bachelor's degree from Lawrence University and an MBA from the The Wharton School at the University of Pennsylvania.

The board also announced the resignation of Joseph M. Rigby, who was elected in January to the board of Dominion Resources, Inc. ■